2 files changed, 63 insertions, 1 deletions

diff --git a/sound/pci/emu10k1/emu10k1_main.c b/sound/pci/emu10k1/emu10k1_main.c
index f8e2ccd50d60..eb093700fa71 100644
--- a/sound/pci/emu10k1/emu10k1_main.c
+++ b/sound/pci/emu10k1/emu10k1_main.c
@@ -181,7 +181,32 @@ static int snd_emu10k1_init(struct snd_emu10k1 *emu, int enable_ir, int resume)
                 tmp = inl(emu->port + A_IOCFG) & ~0x8; /* Clear bit 3 */
                 outl(tmp, emu->port + A_IOCFG);
         }
-
+        if (emu->card_capabilities->spi_dac) { /* Audigy 2 ZS Notebook with DAC Wolfson WM8768/WM8568 */
+                u32 tmp;
+                tmp = snd_emu10k1_spi_write(emu, 0x00ff);
+                tmp = snd_emu10k1_spi_write(emu, 0x02ff);
+                tmp = snd_emu10k1_spi_write(emu, 0x0400);
+                tmp = snd_emu10k1_spi_write(emu, 0x0520);
+                tmp = snd_emu10k1_spi_write(emu, 0x0600);
+                tmp = snd_emu10k1_spi_write(emu, 0x08ff);
+                tmp = snd_emu10k1_spi_write(emu, 0x0aff);
+                tmp = snd_emu10k1_spi_write(emu, 0x0cff);
+                tmp = snd_emu10k1_spi_write(emu, 0x0eff);
+                tmp = snd_emu10k1_spi_write(emu, 0x10ff);
+                tmp = snd_emu10k1_spi_write(emu, 0x1200);
+                tmp = snd_emu10k1_spi_write(emu, 0x1400);
+                tmp = snd_emu10k1_spi_write(emu, 0x1480);
+                tmp = snd_emu10k1_spi_write(emu, 0x1800);
+                tmp = snd_emu10k1_spi_write(emu, 0x1aff);
+                tmp = snd_emu10k1_spi_write(emu, 0x1cff);
+                tmp = snd_emu10k1_spi_write(emu, 0x1e00);
+                tmp = snd_emu10k1_spi_write(emu, 0x0530);
+                tmp = snd_emu10k1_spi_write(emu, 0x0602);
+                tmp = snd_emu10k1_spi_write(emu, 0x0622);
+                tmp = snd_emu10k1_spi_write(emu, 0x1400);
+                snd_emu10k1_ptr20_write(emu, 0x60, 0, 0x10);
+        }
+        
         snd_emu10k1_ptr_write(emu, PTB, 0, emu->ptb_pages.addr);
         snd_emu10k1_ptr_write(emu, TCB, 0, 0);  /* taken from original driver */
         snd_emu10k1_ptr_write(emu, TCBS, 0, 4); /* taken from original driver */
@@ -747,6 +772,7 @@ static struct snd_emu_chip_details emu_chip_details[] = {
          .emu10k2_chip = 1,
          .ca0108_chip = 1,
          .ca_cardbus_chip = 1,
+         .spi_dac = 1,
          .spk71 = 1} ,
         {.vendor = 0x1102, .device = 0x0008, 
          .driver = "Audigy2", .name = "Audigy 2 Value [Unknown]", 
diff --git a/sound/pci/emu10k1/io.c b/sound/pci/emu10k1/io.c
index 5d116dd7403b..7d0cb9db4280 100644
--- a/sound/pci/emu10k1/io.c
+++ b/sound/pci/emu10k1/io.c
@@ -29,6 +29,7 @@
 #include <linux/time.h>
 #include <sound/core.h>
 #include <sound/emu10k1.h>
+#include <linux/delay.h>
 
 unsigned int snd_emu10k1_ptr_read(struct snd_emu10k1 * emu, unsigned int reg, unsigned int chn)
 {
@@ -123,6 +124,41 @@ void snd_emu10k1_ptr20_write(struct snd_emu10k1 *emu,
         spin_unlock_irqrestore(&emu->emu_lock, flags);
 }
 
+int snd_emu10k1_spi_write(struct snd_emu10k1 * emu,
+                                   unsigned int data)
+{
+        unsigned int reset, set;
+        unsigned int reg, tmp;
+        int n, result;
+        if (emu->card_capabilities->ca0108_chip) {
+                reg=0x3c; /* PTR20, reg 0x3c */
+        } else {
+                return 1;  /* For other cards types the SPI register is currently unknown. */
+        }
+        if (data > 0xffff) return 1; /* Only 16bit values allowed */
+
+        tmp = snd_emu10k1_ptr20_read(emu, reg, 0);
+        reset = (tmp & ~0x3ffff) | 0x20000; /* Set xxx20000 */
+        set = reset | 0x10000; /* Set xxx1xxxx */
+        snd_emu10k1_ptr20_write(emu, reg, 0, reset | data);
+        tmp = snd_emu10k1_ptr20_read(emu, reg, 0); /* write post */
+        snd_emu10k1_ptr20_write(emu, reg, 0, set | data);
+        result = 1;
+        /* Wait for status bit to return to 0 */
+        for (n=0;n<100;n++) {
+                udelay(10);
+                tmp = snd_emu10k1_ptr20_read(emu, reg, 0);
+                if (!(tmp & 0x10000)) {
+                        result=0;
+                        break;
+                }
+        }
+        if (result) return 1; /* Timed out */
+        snd_emu10k1_ptr20_write(emu, reg, 0, reset | data);
+        tmp = snd_emu10k1_ptr20_read(emu, reg, 0); /* Write post */
+        return 0;
+}
+
 void snd_emu10k1_intr_enable(struct snd_emu10k1 *emu, unsigned int intrenb)
 {
         unsigned long flags;